EPS systems require specific cabling to connect the interface unit with the Ergopower levers and power unit, and the AC19-CAHEPS kit provides the handlebar mounting configuration for internal interface installations. This setup routes the interface unit inside the handlebar near the right-side bar end, which protects the electronics from weather and crash damage compared to external mounting options. The kit includes a Y-cable that splits to both Ergopower levers and a separate extension cable that runs from the interface to the power unit mounted at the bottom bracket or seatpost.

The Y-cable connects three points with pre-measured lengths: 100 millimeters from the interface to the splitter junction, 340 millimeters from the splitter to the right Ergopower lever, and 1,300 millimeters from the splitter to the left Ergopower lever. These lengths accommodate standard road handlebar widths and internal routing paths through the handlebar and frame. The extension cable measures 800 millimeters from the interface to the power unit, which works for bottom bracket or seatpost battery mounting depending on frame geometry and cable routing options.

Campagnolo uses proprietary connectors throughout the EPS system, and these cables feature the correct plug ends for V4 interface units. The connectors lock into place with a positive click that confirms proper seating, and the cable jackets protect the internal wiring from abrasion as it passes through frame ports and handlebar channels. Each connection point matters because signal integrity depends on clean electrical contact at every junction, and the pre-terminated ends eliminate the possibility of installation errors that could cause communication failures between components.... Read More